using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[RequireComponent(typeof(CanvasGroup))]
public class MinigameInstruction : MonoBehaviour
{

    public float instructionTimeout = 2f;
    public float fadeinTime = 0.5f;
        
    private CanvasGroup _canvasGroup;
    
    
    private void Awake()
    {
        _canvasGroup = GetComponent<CanvasGroup>();
        _canvasGroup.alpha = 0;
    }

    public void Show()
    {
        StartCoroutine(FadeIn());
        StartCoroutine(FadeOutAfterTimeout());
    }

    private IEnumerator FadeIn()
    {
//        Debug.Log("Fading in");
        float t = 0;
        while (t < fadeinTime)
        {
            t += Time.deltaTime;
            _canvasGroup.alpha = t / fadeinTime;
            yield return null;
        }

        _canvasGroup.alpha = 1;
    }

    private IEnumerator FadeOutAfterTimeout()
    {
        yield return new WaitForSeconds(instructionTimeout + fadeinTime);
//        Debug.Log("Fading out");
        float t = 0;
        while (t < fadeinTime)
        {
            t += Time.deltaTime;
            _canvasGroup.alpha = 1 - t / fadeinTime;
            yield return null;
        }

        _canvasGroup.alpha = 0;
    }
}